/*
- * Copyright (C) 2003-2004 the ffmpeg project
+ * Copyright (C) 2003-2004 The FFmpeg project
*
* This file is part of Libav.
*
#include <string.h>
#include "libavutil/imgutils.h"
+
#include "avcodec.h"
-#include "internal.h"
-#include "dsputil.h"
#include "get_bits.h"
#include "hpeldsp.h"
+#include "internal.h"
+#include "mathops.h"
+#include "thread.h"
#include "videodsp.h"
#include "vp3data.h"
#include "vp3dsp.h"
#include "xiph.h"
-#include "thread.h"
#define FRAGMENT_PIXELS 8
-//FIXME split things out into their own arrays
+// FIXME split things out into their own arrays
typedef struct Vp3Fragment {
int16_t dc;
uint8_t coding_method;
#define MODE_COPY 8
/* There are 6 preset schemes, plus a free-form scheme */
-static const int ModeAlphabet[6][CODING_MODE_COUNT] =
-{
+static const int ModeAlphabet[6][CODING_MODE_COUNT] = {
/* scheme 1: Last motion vector dominates */
- { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTER_PLUS_MV, MODE_INTER_NO_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
+ { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
+ MODE_INTER_PLUS_MV, MODE_INTER_NO_MV,
+ MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 2 */
- { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTER_NO_MV, MODE_INTER_PLUS_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
+ { MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
+ MODE_INTER_NO_MV, MODE_INTER_PLUS_MV,
+ MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 3 */
- { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
- MODE_INTER_PRIOR_LAST, MODE_INTER_NO_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
+ { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
+ MODE_INTER_PRIOR_LAST, MODE_INTER_NO_MV,
+ MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 4 */
- { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
- MODE_INTER_NO_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTRA, MODE_USING_GOLDEN,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
+ { MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
+ MODE_INTER_NO_MV, MODE_INTER_PRIOR_LAST,
+ MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 5: No motion vector dominates */
- { MODE_INTER_NO_MV, MODE_INTER_LAST_MV,
- MODE_INTER_PRIOR_LAST, MODE_INTER_PLUS_MV,
- MODE_INTRA, MODE_USING_GOLDEN,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
+ { MODE_INTER_NO_MV, MODE_INTER_LAST_MV,
+ MODE_INTER_PRIOR_LAST, MODE_INTER_PLUS_MV,
+ MODE_INTRA, MODE_USING_GOLDEN,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
/* scheme 6 */
- { MODE_INTER_NO_MV, MODE_USING_GOLDEN,
- MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
- MODE_INTER_PLUS_MV, MODE_INTRA,
- MODE_GOLDEN_MV, MODE_INTER_FOURMV },
-
+ { MODE_INTER_NO_MV, MODE_USING_GOLDEN,
+ MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
+ MODE_INTER_PLUS_MV, MODE_INTRA,
+ MODE_GOLDEN_MV, MODE_INTER_FOURMV },
};
static const uint8_t hilbert_offset[16][2] = {
- {0,0}, {1,0}, {1,1}, {0,1},
- {0,2}, {0,3}, {1,3}, {1,2},
- {2,2}, {2,3}, {3,3}, {3,2},
- {3,1}, {2,1}, {2,0}, {3,0}
+ { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 },
+ { 0, 2 }, { 0, 3 }, { 1, 3 }, { 1, 2 },
+ { 2, 2 }, { 2, 3 }, { 3, 3 }, { 3, 2 },
+ { 3, 1 }, { 2, 1 }, { 2, 0 }, { 3, 0 }
};
#define MIN_DEQUANT_VAL 2
Vp3Fragment *all_fragments;
int fragment_start[3];
int data_offset[3];
+ uint8_t offset_x;
+ uint8_t offset_y;
int8_t (*motion_val[2])[2];
uint32_t coded_ac_scale_factor[64];
uint8_t base_matrix[384][64];
uint8_t qr_count[2][3];
- uint8_t qr_size [2][3][64];
+ uint8_t qr_size[2][3][64];
uint16_t qr_base[2][3][64];
/**
#define TOKEN_COEFF(coeff) (((coeff) << 2) + 2)
/**
- * number of blocks that contain DCT coefficients at the given level or higher
+ * number of blocks that contain DCT coefficients at
+ * the given level or higher
*/
int num_coded_frags[3][64];
int total_num_coded_frags;
uint32_t huffman_table[80][32][2];
uint8_t filter_limit_values[64];
- DECLARE_ALIGNED(8, int, bounding_values_array)[256+2];
+ DECLARE_ALIGNED(8, int, bounding_values_array)[256 + 2];
} Vp3DecodeContext;
/************************************************************************
ff_free_vlc(&s->mode_code_vlc);
ff_free_vlc(&s->motion_vector_vlc);
-
return 0;
}
int x, y, i, j = 0;
for (plane = 0; plane < 3; plane++) {
- int sb_width = plane ? s->c_superblock_width : s->y_superblock_width;
- int sb_height = plane ? s->c_superblock_height : s->y_superblock_height;
+ int sb_width = plane ? s->c_superblock_width
+ : s->y_superblock_width;
+ int sb_height = plane ? s->c_superblock_height
+ : s->y_superblock_height;
int frag_width = s->fragment_width[!!plane];
int frag_height = s->fragment_height[!!plane];
for (sb_y = 0; sb_y < sb_height; sb_y++)
for (sb_x = 0; sb_x < sb_width; sb_x++)
for (i = 0; i < 16; i++) {
- x = 4*sb_x + hilbert_offset[i][0];
- y = 4*sb_y + hilbert_offset[i][1];
+ x = 4 * sb_x + hilbert_offset[i][0];
+ y = 4 * sb_y + hilbert_offset[i][1];
if (x < frag_width && y < frag_height)
- s->superblock_fragments[j++] = s->fragment_start[plane] + y*frag_width + x;
+ s->superblock_fragments[j++] = s->fragment_start[plane] +
+ y * frag_width + x;
else
s->superblock_fragments[j++] = -1;
}
int dc_scale_factor = s->coded_dc_scale_factor[s->qps[qpi]];
int i, plane, inter, qri, bmi, bmj, qistart;
- for(inter=0; inter<2; inter++){
- for(plane=0; plane<3; plane++){
- int sum=0;
- for(qri=0; qri<s->qr_count[inter][plane]; qri++){
- sum+= s->qr_size[inter][plane][qri];
- if(s->qps[qpi] <= sum)
+ for (inter = 0; inter < 2; inter++) {
+ for (plane = 0; plane < 3; plane++) {
+ int sum = 0;
+ for (qri = 0; qri < s->qr_count[inter][plane]; qri++) {
+ sum += s->qr_size[inter][plane][qri];
+ if (s->qps[qpi] <= sum)
break;
}
- qistart= sum - s->qr_size[inter][plane][qri];
- bmi= s->qr_base[inter][plane][qri ];
- bmj= s->qr_base[inter][plane][qri+1];
- for(i=0; i<64; i++){
- int coeff= ( 2*(sum -s->qps[qpi])*s->base_matrix[bmi][i]
- - 2*(qistart-s->qps[qpi])*s->base_matrix[bmj][i]
- + s->qr_size[inter][plane][qri])
- / (2*s->qr_size[inter][plane][qri]);
-
- int qmin= 8<<(inter + !i);
- int qscale= i ? ac_scale_factor : dc_scale_factor;
+ qistart = sum - s->qr_size[inter][plane][qri];
+ bmi = s->qr_base[inter][plane][qri];
+ bmj = s->qr_base[inter][plane][qri + 1];
+ for (i = 0; i < 64; i++) {
+ int coeff = (2 * (sum - s->qps[qpi]) * s->base_matrix[bmi][i] -
+ 2 * (qistart - s->qps[qpi]) * s->base_matrix[bmj][i] +
+ s->qr_size[inter][plane][qri]) /
+ (2 * s->qr_size[inter][plane][qri]);
+
+ int qmin = 8 << (inter + !i);
+ int qscale = i ? ac_scale_factor : dc_scale_factor;
s->qmat[qpi][inter][plane][s->idct_permutation[i]] =
av_clip((qscale * coeff) / 100 * 4, qmin, 4096);
}
- // all DC coefficients use the same quant so as not to interfere with DC prediction
+ /* all DC coefficients use the same quant so as not to interfere
+ * with DC prediction */
s->qmat[qpi][inter][plane][0] = s->qmat[0][inter][plane][0];
}
}
*/
static void init_loop_filter(Vp3DecodeContext *s)
{
- int *bounding_values= s->bounding_values_array+127;
+ int *bounding_values = s->bounding_values_array + 127;
int filter_limit;
int x;
int value;
*/
static int unpack_superblocks(Vp3DecodeContext *s, GetBitContext *gb)
{
- int superblock_starts[3] = { 0, s->u_superblock_start, s->v_superblock_start };
+ int superblock_starts[3] = {
+ 0, s->u_superblock_start, s->v_superblock_start
+ };
int bit = 0;
int current_superblock = 0;
int current_run = 0;
if (s->keyframe) {
memset(s->superblock_coding, SB_FULLY_CODED, s->superblock_count);
-
} else {
-
/* unpack the list of partially-coded superblocks */
- bit = get_bits1(gb) ^ 1;
+ bit = get_bits1(gb) ^ 1;
current_run = 0;
while (current_superblock < s->superblock_count && get_bits_left(gb) > 0) {
else
bit ^= 1;
- current_run = get_vlc2(gb,
- s->superblock_run_length_vlc.table, 6, 2) + 1;
- if (current_run == 34)
- current_run += get_bits(gb, 12);
+ current_run = get_vlc2(gb, s->superblock_run_length_vlc.table,
+ 6, 2) + 1;
+ if (current_run == 34)
+ current_run += get_bits(gb, 12);
if (current_superblock + current_run > s->superblock_count) {
- av_log(s->avctx, AV_LOG_ERROR, "Invalid partially coded superblock run length\n");
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid partially coded superblock run length\n");
return -1;
}
int superblocks_decoded = 0;
current_superblock = 0;
- bit = get_bits1(gb) ^ 1;
- current_run = 0;
-
- while (superblocks_decoded < s->superblock_count - num_partial_superblocks
- && get_bits_left(gb) > 0) {
+ bit = get_bits1(gb) ^ 1;
+ current_run = 0;
+ while (superblocks_decoded < s->superblock_count - num_partial_superblocks &&
+ get_bits_left(gb) > 0) {
if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
bit = get_bits1(gb);
else
bit ^= 1;
- current_run = get_vlc2(gb,
- s->superblock_run_length_vlc.table, 6, 2) + 1;
- if (current_run == 34)
- current_run += get_bits(gb, 12);
+ current_run = get_vlc2(gb, s->superblock_run_length_vlc.table,
+ 6, 2) + 1;
+ if (current_run == 34)
+ current_run += get_bits(gb, 12);
for (j = 0; j < current_run; current_superblock++) {
if (current_superblock >= s->superblock_count) {
- av_log(s->avctx, AV_LOG_ERROR, "Invalid fully coded superblock run length\n");
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid fully coded superblock run length\n");
return -1;
}
- /* skip any superblocks already marked as partially coded */
- if (s->superblock_coding[current_superblock] == SB_NOT_CODED) {
- s->superblock_coding[current_superblock] = 2*bit;
- j++;
- }
+ /* skip any superblocks already marked as partially coded */
+ if (s->superblock_coding[current_superblock] == SB_NOT_CODED) {
+ s->superblock_coding[current_superblock] = 2 * bit;
+ j++;
+ }
}
superblocks_decoded += current_run;
}
/* if there were partial blocks, initialize bitstream for
* unpacking fragment codings */
if (num_partial_superblocks) {
-
current_run = 0;
- bit = get_bits1(gb);
+ bit = get_bits1(gb);
/* toggle the bit because as soon as the first run length is
* fetched the bit will be toggled again */
bit ^= 1;
for (plane = 0; plane < 3; plane++) {
int sb_start = superblock_starts[plane];
- int sb_end = sb_start + (plane ? s->c_superblock_count : s->y_superblock_count);
+ int sb_end = sb_start + (plane ? s->c_superblock_count
+ : s->y_superblock_count);
int num_coded_frags = 0;
- for (i = sb_start; i < sb_end && get_bits_left(gb) > 0; i++) {
-
- /* iterate through all 16 fragments in a superblock */
- for (j = 0; j < 16; j++) {
-
- /* if the fragment is in bounds, check its coding status */
- current_fragment = s->superblock_fragments[i * 16 + j];
- if (current_fragment != -1) {
- int coded = s->superblock_coding[i];
-
- if (s->superblock_coding[i] == SB_PARTIALLY_CODED) {
-
- /* fragment may or may not be coded; this is the case
- * that cares about the fragment coding runs */
- if (current_run-- == 0) {
- bit ^= 1;
- current_run = get_vlc2(gb,
- s->fragment_run_length_vlc.table, 5, 2);
+ for (i = sb_start; i < sb_end && get_bits_left(gb) > 0; i++) {
+ /* iterate through all 16 fragments in a superblock */
+ for (j = 0; j < 16; j++) {
+ /* if the fragment is in bounds, check its coding status */
+ current_fragment = s->superblock_fragments[i * 16 + j];
+ if (current_fragment != -1) {
+ int coded = s->superblock_coding[i];
+
+ if (s->superblock_coding[i] == SB_PARTIALLY_CODED) {
+ /* fragment may or may not be coded; this is the case
+ * that cares about the fragment coding runs */
+ if (current_run-- == 0) {
+ bit ^= 1;
+ current_run = get_vlc2(gb, s->fragment_run_length_vlc.table, 5, 2);
+ }
+ coded = bit;
}
- coded = bit;
- }
if (coded) {
/* default mode; actual mode will be decoded in
s->all_fragments[current_fragment].coding_method =
MODE_COPY;
}
+ }
}
}
- }
s->total_num_coded_frags += num_coded_frags;
for (i = 0; i < 64; i++)
s->num_coded_frags[plane][i] = num_coded_frags;
if (plane < 2)
- s->coded_fragment_list[plane+1] = s->coded_fragment_list[plane] + num_coded_frags;
+ s->coded_fragment_list[plane + 1] = s->coded_fragment_list[plane] +
+ num_coded_frags;
}
return 0;
}
if (s->keyframe) {
for (i = 0; i < s->fragment_count; i++)
s->all_fragments[i].coding_method = MODE_INTRA;
-
} else {
-
/* fetch the mode coding scheme for this frame */
scheme = get_bits(gb, 3);
custom_mode_alphabet[get_bits(gb, 3)] = i;
alphabet = custom_mode_alphabet;
} else
- alphabet = ModeAlphabet[scheme-1];
+ alphabet = ModeAlphabet[scheme - 1];
/* iterate through all of the macroblocks that contain 1 or more
* coded fragments */
if (get_bits_left(gb) <= 0)
return -1;
- for (j = 0; j < 4; j++) {
- int mb_x = 2*sb_x + (j>>1);
- int mb_y = 2*sb_y + (((j>>1)+j)&1);
- current_macroblock = mb_y * s->macroblock_width + mb_x;
+ for (j = 0; j < 4; j++) {
+ int mb_x = 2 * sb_x + (j >> 1);
+ int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);
+ current_macroblock = mb_y * s->macroblock_width + mb_x;
- if (mb_x >= s->macroblock_width || mb_y >= s->macroblock_height)
- continue;
+ if (mb_x >= s->macroblock_width ||
+ mb_y >= s->macroblock_height)
+ continue;
-#define BLOCK_X (2*mb_x + (k&1))
-#define BLOCK_Y (2*mb_y + (k>>1))
- /* coding modes are only stored if the macroblock has at least one
- * luma block coded, otherwise it must be INTER_NO_MV */
- for (k = 0; k < 4; k++) {
- current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
- if (s->all_fragments[current_fragment].coding_method != MODE_COPY)
- break;
- }
- if (k == 4) {
- s->macroblock_coding[current_macroblock] = MODE_INTER_NO_MV;
- continue;
- }
+#define BLOCK_X (2 * mb_x + (k & 1))
+#define BLOCK_Y (2 * mb_y + (k >> 1))
+ /* coding modes are only stored if the macroblock has
+ * at least one luma block coded, otherwise it must be
+ * INTER_NO_MV */
+ for (k = 0; k < 4; k++) {
+ current_fragment = BLOCK_Y *
+ s->fragment_width[0] + BLOCK_X;
+ if (s->all_fragments[current_fragment].coding_method != MODE_COPY)
+ break;
+ }
+ if (k == 4) {
+ s->macroblock_coding[current_macroblock] = MODE_INTER_NO_MV;
+ continue;
+ }
- /* mode 7 means get 3 bits for each coding mode */
- if (scheme == 7)
- coding_mode = get_bits(gb, 3);
- else
- coding_mode = alphabet
- [get_vlc2(gb, s->mode_code_vlc.table, 3, 3)];
+ /* mode 7 means get 3 bits for each coding mode */
+ if (scheme == 7)
+ coding_mode = get_bits(gb, 3);
+ else
+ coding_mode = alphabet[get_vlc2(gb, s->mode_code_vlc.table, 3, 3)];
- s->macroblock_coding[current_macroblock] = coding_mode;
- for (k = 0; k < 4; k++) {
- frag = s->all_fragments + BLOCK_Y*s->fragment_width[0] + BLOCK_X;
- if (frag->coding_method != MODE_COPY)
- frag->coding_method = coding_mode;
- }
+ s->macroblock_coding[current_macroblock] = coding_mode;
+ for (k = 0; k < 4; k++) {
+ frag = s->all_fragments + BLOCK_Y * s->fragment_width[0] + BLOCK_X;
+ if (frag->coding_method != MODE_COPY)
+ frag->coding_method = coding_mode;
+ }
-#define SET_CHROMA_MODES \
- if (frag[s->fragment_start[1]].coding_method != MODE_COPY) \
- frag[s->fragment_start[1]].coding_method = coding_mode;\
- if (frag[s->fragment_start[2]].coding_method != MODE_COPY) \
+#define SET_CHROMA_MODES \
+ if (frag[s->fragment_start[1]].coding_method != MODE_COPY) \
+ frag[s->fragment_start[1]].coding_method = coding_mode; \
+ if (frag[s->fragment_start[2]].coding_method != MODE_COPY) \
frag[s->fragment_start[2]].coding_method = coding_mode;
- if (s->chroma_y_shift) {
- frag = s->all_fragments + mb_y*s->fragment_width[1] + mb_x;
- SET_CHROMA_MODES
- } else if (s->chroma_x_shift) {
- frag = s->all_fragments + 2*mb_y*s->fragment_width[1] + mb_x;
- for (k = 0; k < 2; k++) {
- SET_CHROMA_MODES
- frag += s->fragment_width[1];
- }
- } else {
- for (k = 0; k < 4; k++) {
- frag = s->all_fragments + BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ if (s->chroma_y_shift) {
+ frag = s->all_fragments + mb_y *
+ s->fragment_width[1] + mb_x;
SET_CHROMA_MODES
+ } else if (s->chroma_x_shift) {
+ frag = s->all_fragments +
+ 2 * mb_y * s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
+ SET_CHROMA_MODES
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = s->all_fragments +
+ BLOCK_Y * s->fragment_width[1] + BLOCK_X;
+ SET_CHROMA_MODES
+ }
}
}
}
- }
}
}
if (get_bits_left(gb) <= 0)
return -1;
- for (j = 0; j < 4; j++) {
- int mb_x = 2*sb_x + (j>>1);
- int mb_y = 2*sb_y + (((j>>1)+j)&1);
- current_macroblock = mb_y * s->macroblock_width + mb_x;
+ for (j = 0; j < 4; j++) {
+ int mb_x = 2 * sb_x + (j >> 1);
+ int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);
+ current_macroblock = mb_y * s->macroblock_width + mb_x;
- if (mb_x >= s->macroblock_width || mb_y >= s->macroblock_height ||
- (s->macroblock_coding[current_macroblock] == MODE_COPY))
- continue;
+ if (mb_x >= s->macroblock_width ||
+ mb_y >= s->macroblock_height ||
+ s->macroblock_coding[current_macroblock] == MODE_COPY)
+ continue;
- switch (s->macroblock_coding[current_macroblock]) {
+ switch (s->macroblock_coding[current_macroblock]) {
+ case MODE_INTER_PLUS_MV:
+ case MODE_GOLDEN_MV:
+ /* all 6 fragments use the same motion vector */
+ if (coding_mode == 0) {
+ motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ } else {
+ motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
+ motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
+ }
- case MODE_INTER_PLUS_MV:
- case MODE_GOLDEN_MV:
- /* all 6 fragments use the same motion vector */
- if (coding_mode == 0) {
- motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
- motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
- } else {
- motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
- motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
- }
+ /* vector maintenance, only on MODE_INTER_PLUS_MV */
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_PLUS_MV) {
+ prior_last_motion_x = last_motion_x;
+ prior_last_motion_y = last_motion_y;
+ last_motion_x = motion_x[0];
+ last_motion_y = motion_y[0];
+ }
+ break;
- /* vector maintenance, only on MODE_INTER_PLUS_MV */
- if (s->macroblock_coding[current_macroblock] ==
- MODE_INTER_PLUS_MV) {
+ case MODE_INTER_FOURMV:
+ /* vector maintenance */
prior_last_motion_x = last_motion_x;
prior_last_motion_y = last_motion_y;
- last_motion_x = motion_x[0];
- last_motion_y = motion_y[0];
- }
- break;
- case MODE_INTER_FOURMV:
- /* vector maintenance */
- prior_last_motion_x = last_motion_x;
- prior_last_motion_y = last_motion_y;
-
- /* fetch 4 vectors from the bitstream, one for each
- * Y fragment, then average for the C fragment vectors */
- for (k = 0; k < 4; k++) {
- current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
- if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
- if (coding_mode == 0) {
- motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
- motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ /* fetch 4 vectors from the bitstream, one for each
+ * Y fragment, then average for the C fragment vectors */
+ for (k = 0; k < 4; k++) {
+ current_fragment = BLOCK_Y * s->fragment_width[0] + BLOCK_X;
+ if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
+ if (coding_mode == 0) {
+ motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
+ } else {
+ motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
+ motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
+ }
+ last_motion_x = motion_x[k];
+ last_motion_y = motion_y[k];
} else {
- motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
- motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
+ motion_x[k] = 0;
+ motion_y[k] = 0;
}
- last_motion_x = motion_x[k];
- last_motion_y = motion_y[k];
- } else {
- motion_x[k] = 0;
- motion_y[k] = 0;
}
- }
- break;
-
- case MODE_INTER_LAST_MV:
- /* all 6 fragments use the last motion vector */
- motion_x[0] = last_motion_x;
- motion_y[0] = last_motion_y;
-
- /* no vector maintenance (last vector remains the
- * last vector) */
- break;
-
- case MODE_INTER_PRIOR_LAST:
- /* all 6 fragments use the motion vector prior to the
- * last motion vector */
- motion_x[0] = prior_last_motion_x;
- motion_y[0] = prior_last_motion_y;
-
- /* vector maintenance */
- prior_last_motion_x = last_motion_x;
- prior_last_motion_y = last_motion_y;
- last_motion_x = motion_x[0];
- last_motion_y = motion_y[0];
- break;
-
- default:
- /* covers intra, inter without MV, golden without MV */
- motion_x[0] = 0;
- motion_y[0] = 0;
-
- /* no vector maintenance */
- break;
- }
+ break;
- /* assign the motion vectors to the correct fragments */
- for (k = 0; k < 4; k++) {
- current_fragment =
- BLOCK_Y*s->fragment_width[0] + BLOCK_X;
- if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- s->motion_val[0][current_fragment][0] = motion_x[k];
- s->motion_val[0][current_fragment][1] = motion_y[k];
- } else {
- s->motion_val[0][current_fragment][0] = motion_x[0];
- s->motion_val[0][current_fragment][1] = motion_y[0];
- }
- }
+ case MODE_INTER_LAST_MV:
+ /* all 6 fragments use the last motion vector */
+ motion_x[0] = last_motion_x;
+ motion_y[0] = last_motion_y;
- if (s->chroma_y_shift) {
- if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] + motion_x[2] + motion_x[3], 2);
- motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] + motion_y[2] + motion_y[3], 2);
- }
- motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
- motion_y[0] = (motion_y[0]>>1) | (motion_y[0]&1);
- frag = mb_y*s->fragment_width[1] + mb_x;
- s->motion_val[1][frag][0] = motion_x[0];
- s->motion_val[1][frag][1] = motion_y[0];
- } else if (s->chroma_x_shift) {
- if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);
- motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);
- motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);
- motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);
- } else {
- motion_x[1] = motion_x[0];
- motion_y[1] = motion_y[0];
- }
- motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
- motion_x[1] = (motion_x[1]>>1) | (motion_x[1]&1);
-
- frag = 2*mb_y*s->fragment_width[1] + mb_x;
- for (k = 0; k < 2; k++) {
- s->motion_val[1][frag][0] = motion_x[k];
- s->motion_val[1][frag][1] = motion_y[k];
- frag += s->fragment_width[1];
+ /* no vector maintenance (last vector remains the
+ * last vector) */
+ break;
+
+ case MODE_INTER_PRIOR_LAST:
+ /* all 6 fragments use the motion vector prior to the
+ * last motion vector */
+ motion_x[0] = prior_last_motion_x;
+ motion_y[0] = prior_last_motion_y;
+
+ /* vector maintenance */
+ prior_last_motion_x = last_motion_x;
+ prior_last_motion_y = last_motion_y;
+ last_motion_x = motion_x[0];
+ last_motion_y = motion_y[0];
+ break;
+
+ default:
+ /* covers intra, inter without MV, golden without MV */
+ motion_x[0] = 0;
+ motion_y[0] = 0;
+
+ /* no vector maintenance */
+ break;
}
- } else {
+
+ /* assign the motion vectors to the correct fragments */
for (k = 0; k < 4; k++) {
- frag = BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ current_fragment =
+ BLOCK_Y * s->fragment_width[0] + BLOCK_X;
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ s->motion_val[0][current_fragment][0] = motion_x[k];
+ s->motion_val[0][current_fragment][1] = motion_y[k];
+ } else {
+ s->motion_val[0][current_fragment][0] = motion_x[0];
+ s->motion_val[0][current_fragment][1] = motion_y[0];
+ }
+ }
+
+ if (s->chroma_y_shift) {
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] +
+ motion_x[2] + motion_x[3], 2);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] +
+ motion_y[2] + motion_y[3], 2);
+ }
+ motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
+ motion_y[0] = (motion_y[0] >> 1) | (motion_y[0] & 1);
+ frag = mb_y * s->fragment_width[1] + mb_x;
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ } else if (s->chroma_x_shift) {
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);
+ motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);
+ motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);
+ } else {
+ motion_x[1] = motion_x[0];
+ motion_y[1] = motion_y[0];
+ }
+ motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
+ motion_x[1] = (motion_x[1] >> 1) | (motion_x[1] & 1);
+
+ frag = 2 * mb_y * s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
s->motion_val[1][frag][0] = motion_x[k];
s->motion_val[1][frag][1] = motion_y[k];
- } else {
- s->motion_val[1][frag][0] = motion_x[0];
- s->motion_val[1][frag][1] = motion_y[0];
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = BLOCK_Y * s->fragment_width[1] + BLOCK_X;
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ s->motion_val[1][frag][0] = motion_x[k];
+ s->motion_val[1][frag][1] = motion_y[k];
+ } else {
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ }
}
}
}
}
- }
}
return 0;
int qpi, i, j, bit, run_length, blocks_decoded, num_blocks_at_qpi;
int num_blocks = s->total_num_coded_frags;
- for (qpi = 0; qpi < s->nqps-1 && num_blocks > 0; qpi++) {
+ for (qpi = 0; qpi < s->nqps - 1 && num_blocks > 0; qpi++) {
i = blocks_decoded = num_blocks_at_qpi = 0;
- bit = get_bits1(gb) ^ 1;
+ bit = get_bits1(gb) ^ 1;
run_length = 0;
do {
* be passed into the next call to this same function.
*/
static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
- VLC *table, int coeff_index,
- int plane,
- int eob_run)
+ VLC *table, int coeff_index,
+ int plane,
+ int eob_run)
{
int i, j = 0;
int token;
- int zero_run = 0;
+ int zero_run = 0;
int16_t coeff = 0;
int bits_to_get;
int blocks_ended;
int coeff_i = 0;
- int num_coeffs = s->num_coded_frags[plane][coeff_index];
+ int num_coeffs = s->num_coded_frags[plane][coeff_index];
int16_t *dct_tokens = s->dct_tokens[plane][coeff_index];
- /* local references to structure members to avoid repeated deferences */
- int *coded_fragment_list = s->coded_fragment_list[plane];
+ /* local references to structure members to avoid repeated dereferences */
+ int *coded_fragment_list = s->coded_fragment_list[plane];
Vp3Fragment *all_fragments = s->all_fragments;
- VLC_TYPE (*vlc_table)[2] = table->table;
+ VLC_TYPE(*vlc_table)[2] = table->table;
if (num_coeffs < 0)
- av_log(s->avctx, AV_LOG_ERROR, "Invalid number of coefficents at level %d\n", coeff_index);
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid number of coefficients at level %d\n", coeff_index);
if (eob_run > num_coeffs) {
- coeff_i = blocks_ended = num_coeffs;
- eob_run -= num_coeffs;
+ coeff_i =
+ blocks_ended = num_coeffs;
+ eob_run -= num_coeffs;
} else {
- coeff_i = blocks_ended = eob_run;
- eob_run = 0;
+ coeff_i =
+ blocks_ended = eob_run;
+ eob_run = 0;
}
// insert fake EOB token to cover the split between planes or zzi
dct_tokens[j++] = blocks_ended << 2;
while (coeff_i < num_coeffs && get_bits_left(gb) > 0) {
- /* decode a VLC into a token */
- token = get_vlc2(gb, vlc_table, 11, 3);
- /* use the token to get a zero run, a coefficient, and an eob run */
- if ((unsigned) token <= 6U) {
- eob_run = eob_run_base[token];
- if (eob_run_get_bits[token])
- eob_run += get_bits(gb, eob_run_get_bits[token]);
-
- // record only the number of blocks ended in this plane,
- // any spill will be recorded in the next plane.
- if (eob_run > num_coeffs - coeff_i) {
- dct_tokens[j++] = TOKEN_EOB(num_coeffs - coeff_i);
- blocks_ended += num_coeffs - coeff_i;
- eob_run -= num_coeffs - coeff_i;
- coeff_i = num_coeffs;
- } else {
- dct_tokens[j++] = TOKEN_EOB(eob_run);
- blocks_ended += eob_run;
- coeff_i += eob_run;
- eob_run = 0;
- }
- } else if (token >= 0) {
- bits_to_get = coeff_get_bits[token];
- if (bits_to_get)
- bits_to_get = get_bits(gb, bits_to_get);
- coeff = coeff_tables[token][bits_to_get];
-
- zero_run = zero_run_base[token];
- if (zero_run_get_bits[token])
- zero_run += get_bits(gb, zero_run_get_bits[token]);
-
- if (zero_run) {
- dct_tokens[j++] = TOKEN_ZERO_RUN(coeff, zero_run);
- } else {
- // Save DC into the fragment structure. DC prediction is
- // done in raster order, so the actual DC can't be in with
- // other tokens. We still need the token in dct_tokens[]
- // however, or else the structure collapses on itself.
- if (!coeff_index)
- all_fragments[coded_fragment_list[coeff_i]].dc = coeff;
-
- dct_tokens[j++] = TOKEN_COEFF(coeff);
- }
-
- if (coeff_index + zero_run > 64) {
- av_log(s->avctx, AV_LOG_DEBUG, "Invalid zero run of %d with"
- " %d coeffs left\n", zero_run, 64-coeff_index);
- zero_run = 64 - coeff_index;
- }
-
- // zero runs code multiple coefficients,
- // so don't try to decode coeffs for those higher levels
- for (i = coeff_index+1; i <= coeff_index+zero_run; i++)
- s->num_coded_frags[plane][i]--;
- coeff_i++;
+ /* decode a VLC into a token */
+ token = get_vlc2(gb, vlc_table, 11, 3);
+ /* use the token to get a zero run, a coefficient, and an eob run */
+ if ((unsigned) token <= 6U) {
+ eob_run = eob_run_base[token];
+ if (eob_run_get_bits[token])
+ eob_run += get_bits(gb, eob_run_get_bits[token]);
+
+ // record only the number of blocks ended in this plane,
+ // any spill will be recorded in the next plane.
+ if (eob_run > num_coeffs - coeff_i) {
+ dct_tokens[j++] = TOKEN_EOB(num_coeffs - coeff_i);
+ blocks_ended += num_coeffs - coeff_i;
+ eob_run -= num_coeffs - coeff_i;
+ coeff_i = num_coeffs;
} else {
- av_log(s->avctx, AV_LOG_ERROR,
- "Invalid token %d\n", token);
- return -1;
+ dct_tokens[j++] = TOKEN_EOB(eob_run);
+ blocks_ended += eob_run;
+ coeff_i += eob_run;
+ eob_run = 0;
+ }
+ } else if (token >= 0) {
+ bits_to_get = coeff_get_bits[token];
+ if (bits_to_get)
+ bits_to_get = get_bits(gb, bits_to_get);
+ coeff = coeff_tables[token][bits_to_get];
+
+ zero_run = zero_run_base[token];
+ if (zero_run_get_bits[token])
+ zero_run += get_bits(gb, zero_run_get_bits[token]);
+
+ if (zero_run) {
+ dct_tokens[j++] = TOKEN_ZERO_RUN(coeff, zero_run);
+ } else {
+ // Save DC into the fragment structure. DC prediction is
+ // done in raster order, so the actual DC can't be in with
+ // other tokens. We still need the token in dct_tokens[]
+ // however, or else the structure collapses on itself.
+ if (!coeff_index)
+ all_fragments[coded_fragment_list[coeff_i]].dc = coeff;
+
+ dct_tokens[j++] = TOKEN_COEFF(coeff);
}
+
+ if (coeff_index + zero_run > 64) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "Invalid zero run of %d with %d coeffs left\n",
+ zero_run, 64 - coeff_index);
+ zero_run = 64 - coeff_index;
+ }
+
+ // zero runs code multiple coefficients,
+ // so don't try to decode coeffs for those higher levels
+ for (i = coeff_index + 1; i <= coeff_index + zero_run; i++)
+ s->num_coded_frags[plane][i]--;
+ coeff_i++;
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid token %d\n", token);
+ return -1;
+ }
}
if (blocks_ended > s->num_coded_frags[plane][coeff_index])
av_log(s->avctx, AV_LOG_ERROR, "More blocks ended than coded!\n");
- // decrement the number of blocks that have higher coeffecients for each
+ // decrement the number of blocks that have higher coefficients for each
// EOB run at this level
if (blocks_ended)
- for (i = coeff_index+1; i < 64; i++)
+ for (i = coeff_index + 1; i < 64; i++)
s->num_coded_frags[plane][i] -= blocks_ended;
// setup the next buffer
if (plane < 2)
- s->dct_tokens[plane+1][coeff_index] = dct_tokens + j;
+ s->dct_tokens[plane + 1][coeff_index] = dct_tokens + j;
else if (coeff_index < 63)
- s->dct_tokens[0][coeff_index+1] = dct_tokens + j;
+ s->dct_tokens[0][coeff_index + 1] = dct_tokens + j;
return eob_run;
}
/* unpack the Y plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
- 0, residual_eob_run);
+ 0, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
/* unpack the C plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
- 1, residual_eob_run);
+ 1, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
- 2, residual_eob_run);
+ 2, residual_eob_run);
if (residual_eob_run < 0)
return residual_eob_run;
/* reverse prediction of the C-plane DC coefficients */
- if (!(s->avctx->flags & CODEC_FLAG_GRAY))
- {
+ if (!(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
reverse_dc_prediction(s, s->fragment_start[1],
- s->fragment_width[1], s->fragment_height[1]);
+ s->fragment_width[1], s->fragment_height[1]);
reverse_dc_prediction(s, s->fragment_start[2],
- s->fragment_width[1], s->fragment_height[1]);
+ s->fragment_width[1], s->fragment_height[1]);
}
/* fetch the AC table indexes */
c_tables[i] = &s->ac_vlc_4[ac_c_table];
}
- /* decode all AC coefficents */
+ /* decode all AC coefficients */
for (i = 1; i <= 63; i++) {
- residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
- 0, residual_eob_run);
- if (residual_eob_run < 0)
- return residual_eob_run;
-
- residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
- 1, residual_eob_run);
- if (residual_eob_run < 0)
- return residual_eob_run;
- residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
- 2, residual_eob_run);
- if (residual_eob_run < 0)
- return residual_eob_run;
+ residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
+ 0, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
+
+ residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
+ 1, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
+ residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
+ 2, residual_eob_run);
+ if (residual_eob_run < 0)
+ return residual_eob_run;
}
return 0;
* the frame. Much of this function is adapted directly from the original
* VP3 source code.
*/
-#define COMPATIBLE_FRAME(x) \
- (compatible_frame[s->all_fragments[x].coding_method] == current_frame_type)
+#define COMPATIBLE_FRAME(x) \
+ (compatible_frame[s->all_fragments[x].coding_method] == current_frame_type)
#define DC_COEFF(u) s->all_fragments[u].dc
static void reverse_dc_prediction(Vp3DecodeContext *s,
int fragment_width,
int fragment_height)
{
-
#define PUL 8
#define PU 4
#define PUR 2
* 3: left multiplier
*/
static const int predictor_transform[16][4] = {
- { 0, 0, 0, 0},
- { 0, 0, 0,128}, // PL
- { 0, 0,128, 0}, // PUR
- { 0, 0, 53, 75}, // PUR|PL
- { 0,128, 0, 0}, // PU
- { 0, 64, 0, 64}, // PU|PL
- { 0,128, 0, 0}, // PU|PUR
- { 0, 0, 53, 75}, // PU|PUR|PL
- {128, 0, 0, 0}, // PUL
- { 0, 0, 0,128}, // PUL|PL
- { 64, 0, 64, 0}, // PUL|PUR
- { 0, 0, 53, 75}, // PUL|PUR|PL
- { 0,128, 0, 0}, // PUL|PU
- {-104,116, 0,116}, // PUL|PU|PL
- { 24, 80, 24, 0}, // PUL|PU|PUR
- {-104,116, 0,116} // PUL|PU|PUR|PL
+ { 0, 0, 0, 0 },
+ { 0, 0, 0, 128 }, // PL
+ { 0, 0, 128, 0 }, // PUR
+ { 0, 0, 53, 75 }, // PUR|PL
+ { 0, 128, 0, 0 }, // PU
+ { 0, 64, 0, 64 }, // PU |PL
+ { 0, 128, 0, 0 }, // PU |PUR
+ { 0, 0, 53, 75 }, // PU |PUR|PL
+ { 128, 0, 0, 0 }, // PUL
+ { 0, 0, 0, 128 }, // PUL|PL
+ { 64, 0, 64, 0 }, // PUL|PUR
+ { 0, 0, 53, 75 }, // PUL|PUR|PL
+ { 0, 128, 0, 0 }, // PUL|PU
+ { -104, 116, 0, 116 }, // PUL|PU |PL
+ { 24, 80, 24, 0 }, // PUL|PU |PUR
+ { -104, 116, 0, 116 } // PUL|PU |PUR|PL
};
/* This table shows which types of blocks can use other blocks for
int transform = 0;
- vul = vu = vur = vl = 0;
- last_dc[0] = last_dc[1] = last_dc[2] = 0;
+ vul =
+ vu =
+ vur =
+ vl = 0;
+ last_dc[0] =
+ last_dc[1] =
+ last_dc[2] = 0;
/* for each fragment row... */
for (y = 0; y < fragment_height; y++) {
-
/* for each fragment in a row... */
for (x = 0; x < fragment_width; x++, i++) {
/* reverse prediction if this block was coded */
if (s->all_fragments[i].coding_method != MODE_COPY) {
-
current_frame_type =
compatible_frame[s->all_fragments[i].coding_method];
- transform= 0;
- if(x){
- l= i-1;
+ transform = 0;
+ if (x) {
+ l = i - 1;
vl = DC_COEFF(l);
- if(COMPATIBLE_FRAME(l))
+ if (COMPATIBLE_FRAME(l))
transform |= PL;
}
- if(y){
- u= i-fragment_width;
+ if (y) {
+ u = i - fragment_width;
vu = DC_COEFF(u);
- if(COMPATIBLE_FRAME(u))
+ if (COMPATIBLE_FRAME(u))
transform |= PU;
- if(x){
- ul= i-fragment_width-1;
+ if (x) {
+ ul = i - fragment_width - 1;
vul = DC_COEFF(ul);
- if(COMPATIBLE_FRAME(ul))
+ if (COMPATIBLE_FRAME(ul))
transform |= PUL;
}
- if(x + 1 < fragment_width){
- ur= i-fragment_width+1;
+ if (x + 1 < fragment_width) {
+ ur = i - fragment_width + 1;
vur = DC_COEFF(ur);
- if(COMPATIBLE_FRAME(ur))
+ if (COMPATIBLE_FRAME(ur))
transform |= PUR;
}
}
if (transform == 0) {
-
/* if there were no fragments to predict from, use last
* DC saved */
predicted_dc = last_dc[current_frame_type];
} else {
-
/* apply the appropriate predictor transform */
predicted_dc =
(predictor_transform[transform][0] * vul) +
}
}
-static void apply_loop_filter(Vp3DecodeContext *s, int plane, int ystart, int yend)
+static void apply_loop_filter(Vp3DecodeContext *s, int plane,
+ int ystart, int yend)
{
int x, y;
- int *bounding_values= s->bounding_values_array+127;
+ int *bounding_values = s->bounding_values_array + 127;
int width = s->fragment_width[!!plane];
int height = s->fragment_height[!!plane];
- int fragment = s->fragment_start [plane] + ystart * width;
- int stride = s->current_frame.f->linesize[plane];
- uint8_t *plane_data = s->current_frame.f->data [plane];
- if (!s->flipped_image) stride = -stride;
- plane_data += s->data_offset[plane] + 8*ystart*stride;
+ int fragment = s->fragment_start[plane] + ystart * width;
+ ptrdiff_t stride = s->current_frame.f->linesize[plane];
+ uint8_t *plane_data = s->current_frame.f->data[plane];
+ if (!s->flipped_image)
+ stride = -stride;
+ plane_data += s->data_offset[plane] + 8 * ystart * stride;
for (y = ystart; y < yend; y++) {
-
for (x = 0; x < width; x++) {
/* This code basically just deblocks on the edges of coded blocks.
* However, it has to be much more complicated because of the
- * braindamaged deblock ordering used in VP3/Theora. Order matters
+ * brain damaged deblock ordering used in VP3/Theora. Order matters
* because some pixels get filtered twice. */
- if( s->all_fragments[fragment].coding_method != MODE_COPY )
- {
+ if (s->all_fragments[fragment].coding_method != MODE_COPY) {
/* do not perform left edge filter for left columns frags */
if (x > 0) {
s->vp3dsp.h_loop_filter(
- plane_data + 8*x,
+ plane_data + 8 * x,
stride, bounding_values);
}
/* do not perform top edge filter for top row fragments */
if (y > 0) {
s->vp3dsp.v_loop_filter(
- plane_data + 8*x,
+ plane_data + 8 * x,
stride, bounding_values);
}
if ((x < width - 1) &&
(s->all_fragments[fragment + 1].coding_method == MODE_COPY)) {
s->vp3dsp.h_loop_filter(
- plane_data + 8*x + 8,
+ plane_data + 8 * x + 8,
stride, bounding_values);
}
if ((y < height - 1) &&
(s->all_fragments[fragment + width].coding_method == MODE_COPY)) {
s->vp3dsp.v_loop_filter(
- plane_data + 8*x + 8*stride,
+ plane_data + 8 * x + 8 * stride,
stride, bounding_values);
}
}
fragment++;
}
- plane_data += 8*stride;
+ plane_data += 8 * stride;
}
}
int token = *s->dct_tokens[plane][i];
switch (token & 3) {
case 0: // EOB
- if (--token < 4) // 0-3 are token types, so the EOB run must now be 0
+ if (--token < 4) // 0-3 are token types so the EOB run must now be 0
s->dct_tokens[plane][i]++;
else
*s->dct_tokens[plane][i] = token & ~3;
int h, cy, i;
int offset[AV_NUM_DATA_POINTERS];
- if (HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
- int y_flipped = s->flipped_image ? s->avctx->height-y : y;
+ if (HAVE_THREADS && s->avctx->active_thread_type & FF_THREAD_FRAME) {
+ int y_flipped = s->flipped_image ? s->height - y : y;
- // At the end of the frame, report INT_MAX instead of the height of the frame.
- // This makes the other threads' ff_thread_await_progress() calls cheaper, because
- // they don't have to clip their values.
- ff_thread_report_progress(&s->current_frame, y_flipped==s->avctx->height ? INT_MAX : y_flipped-1, 0);
+ /* At the end of the frame, report INT_MAX instead of the height of
+ * the frame. This makes the other threads' ff_thread_await_progress()
+ * calls cheaper, because they don't have to clip their values. */
+ ff_thread_report_progress(&s->current_frame,
+ y_flipped == s->height ? INT_MAX
+ : y_flipped - 1,
+ 0);
}
- if(s->avctx->draw_horiz_band==NULL)
+ if (!s->avctx->draw_horiz_band)
return;
- h= y - s->last_slice_end;
- s->last_slice_end= y;
+ h = y - s->last_slice_end;
+ s->last_slice_end = y;
y -= h;
- if (!s->flipped_image) {
- y = s->avctx->height - y - h;
- }
+ if (!s->flipped_image)
+ y = s->height - y - h;
- cy = y >> s->chroma_y_shift;
- offset[0] = s->current_frame.f->linesize[0]*y;
- offset[1] = s->current_frame.f->linesize[1]*cy;
- offset[2] = s->current_frame.f->linesize[2]*cy;
+ cy = y >> s->chroma_y_shift;
+ offset[0] = s->current_frame.f->linesize[0] * y;
+ offset[1] = s->current_frame.f->linesize[1] * cy;
+ offset[2] = s->current_frame.f->linesize[2] * cy;
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
* Wait for the reference frame of the current fragment.
* The progress value is in luma pixel rows.
*/
-static void await_reference_row(Vp3DecodeContext *s, Vp3Fragment *fragment, int motion_y, int y)
+static void await_reference_row(Vp3DecodeContext *s, Vp3Fragment *fragment,
+ int motion_y, int y)
{
ThreadFrame *ref_frame;
int ref_row;
- int border = motion_y&1;
+ int border = motion_y & 1;
if (fragment->coding_method == MODE_USING_GOLDEN ||
fragment->coding_method == MODE_GOLDEN_MV)
else
ref_frame = &s->last_frame;
- ref_row = y + (motion_y>>1);
+ ref_row = y + (motion_y >> 1);
ref_row = FFMAX(FFABS(ref_row), ref_row + 8 + border);
ff_thread_await_progress(ref_frame, ref_row, 0);
return;
for (plane = 0; plane < 3; plane++) {
- uint8_t *output_plane = s->current_frame.f->data [plane] + s->data_offset[plane];
- uint8_t * last_plane = s-> last_frame.f->data [plane] + s->data_offset[plane];
- uint8_t *golden_plane = s-> golden_frame.f->data [plane] + s->data_offset[plane];
- int stride = s->current_frame.f->linesize[plane];
- int plane_width = s->width >> (plane && s->chroma_x_shift);
- int plane_height = s->height >> (plane && s->chroma_y_shift);
- int8_t (*motion_val)[2] = s->motion_val[!!plane];
-
- int sb_x, sb_y = slice << (!plane && s->chroma_y_shift);
- int slice_height = sb_y + 1 + (!plane && s->chroma_y_shift);
- int slice_width = plane ? s->c_superblock_width : s->y_superblock_width;
-
- int fragment_width = s->fragment_width[!!plane];
- int fragment_height = s->fragment_height[!!plane];
- int fragment_start = s->fragment_start[plane];
- int do_await = !plane && HAVE_THREADS && (s->avctx->active_thread_type&FF_THREAD_FRAME);
-
- if (!s->flipped_image) stride = -stride;
- if (CONFIG_GRAY && plane && (s->avctx->flags & CODEC_FLAG_GRAY))
+ uint8_t *output_plane = s->current_frame.f->data[plane] +
+ s->data_offset[plane];
+ uint8_t *last_plane = s->last_frame.f->data[plane] +
+ s->data_offset[plane];
+ uint8_t *golden_plane = s->golden_frame.f->data[plane] +
+ s->data_offset[plane];
+ ptrdiff_t stride = s->current_frame.f->linesize[plane];
+ int plane_width = s->width >> (plane && s->chroma_x_shift);
+ int plane_height = s->height >> (plane && s->chroma_y_shift);
+ int8_t(*motion_val)[2] = s->motion_val[!!plane];
+
+ int sb_x, sb_y = slice << (!plane && s->chroma_y_shift);
+ int slice_height = sb_y + 1 + (!plane && s->chroma_y_shift);
+ int slice_width = plane ? s->c_superblock_width
+ : s->y_superblock_width;
+
+ int fragment_width = s->fragment_width[!!plane];
+ int fragment_height = s->fragment_height[!!plane];
+ int fragment_start = s->fragment_start[plane];
+
+ int do_await = !plane && HAVE_THREADS &&
+ (s->avctx->active_thread_type & FF_THREAD_FRAME);
+
+ if (!s->flipped_image)
+ stride = -stride;
+ if (CONFIG_GRAY && plane && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
/* for each superblock row in the slice (both of them)... */
for (; sb_y < slice_height; sb_y++) {
-
/* for each superblock in a row... */
for (sb_x = 0; sb_x < slice_width; sb_x++) {
-
/* for each block in a superblock... */
for (j = 0; j < 16; j++) {
- x = 4*sb_x + hilbert_offset[j][0];
- y = 4*sb_y + hilbert_offset[j][1];
- fragment = y*fragment_width + x;
+ x = 4 * sb_x + hilbert_offset[j][0];
+ y = 4 * sb_y + hilbert_offset[j][1];
+ fragment = y * fragment_width + x;
i = fragment_start + fragment;
if (x >= fragment_width || y >= fragment_height)
continue;
- first_pixel = 8*y*stride + 8*x;
-
- if (do_await && s->all_fragments[i].coding_method != MODE_INTRA)
- await_reference_row(s, &s->all_fragments[i], motion_val[fragment][1], (16*y) >> s->chroma_y_shift);
-
- /* transform if this block was coded */
- if (s->all_fragments[i].coding_method != MODE_COPY) {
- if ((s->all_fragments[i].coding_method == MODE_USING_GOLDEN) ||
- (s->all_fragments[i].coding_method == MODE_GOLDEN_MV))
- motion_source= golden_plane;
- else
- motion_source= last_plane;
-
- motion_source += first_pixel;
- motion_halfpel_index = 0;
-
- /* sort out the motion vector if this fragment is coded
- * using a motion vector method */
- if ((s->all_fragments[i].coding_method > MODE_INTRA) &&
- (s->all_fragments[i].coding_method != MODE_USING_GOLDEN)) {
- int src_x, src_y;
- motion_x = motion_val[fragment][0];
- motion_y = motion_val[fragment][1];
-
- src_x= (motion_x>>1) + 8*x;
- src_y= (motion_y>>1) + 8*y;
-
- motion_halfpel_index = motion_x & 0x01;
- motion_source += (motion_x >> 1);
-
- motion_halfpel_index |= (motion_y & 0x01) << 1;
- motion_source += ((motion_y >> 1) * stride);
-
- if(src_x<0 || src_y<0 || src_x + 9 >= plane_width || src_y + 9 >= plane_height){
- uint8_t *temp= s->edge_emu_buffer;
- if(stride<0) temp -= 8*stride;
-
- s->vdsp.emulated_edge_mc(temp, motion_source, stride, 9, 9, src_x, src_y, plane_width, plane_height);
- motion_source= temp;
+ first_pixel = 8 * y * stride + 8 * x;
+
+ if (do_await &&
+ s->all_fragments[i].coding_method != MODE_INTRA)
+ await_reference_row(s, &s->all_fragments[i],
+ motion_val[fragment][1],
+ (16 * y) >> s->chroma_y_shift);
+
+ /* transform if this block was coded */
+ if (s->all_fragments[i].coding_method != MODE_COPY) {
+ if ((s->all_fragments[i].coding_method == MODE_USING_GOLDEN) ||
+ (s->all_fragments[i].coding_method == MODE_GOLDEN_MV))
+ motion_source = golden_plane;
+ else
+ motion_source = last_plane;
+
+ motion_source += first_pixel;
+ motion_halfpel_index = 0;
+
+ /* sort out the motion vector if this fragment is coded
+ * using a motion vector method */
+ if ((s->all_fragments[i].coding_method > MODE_INTRA) &&
+ (s->all_fragments[i].coding_method != MODE_USING_GOLDEN)) {
+ int src_x, src_y;
+ motion_x = motion_val[fragment][0];
+ motion_y = motion_val[fragment][1];
+
+ src_x = (motion_x >> 1) + 8 * x;
+ src_y = (motion_y >> 1) + 8 * y;
+
+ motion_halfpel_index = motion_x & 0x01;
+ motion_source += (motion_x >> 1);
+
+ motion_halfpel_index |= (motion_y & 0x01) << 1;
+ motion_source += ((motion_y >> 1) * stride);
+
+ if (src_x < 0 || src_y < 0 ||
+ src_x + 9 >= plane_width ||
+ src_y + 9 >= plane_height) {
+ uint8_t *temp = s->edge_emu_buffer;
+ if (stride < 0)
+ temp -= 8 * stride;
+
+ s->vdsp.emulated_edge_mc(temp, motion_source,
+ stride, stride,
+ 9, 9, src_x, src_y,
+ plane_width,
+ plane_height);
+ motion_source = temp;
+ }
}
- }
-
- /* first, take care of copying a block from either the
- * previous or the golden frame */
- if (s->all_fragments[i].coding_method != MODE_INTRA) {
- /* Note, it is possible to implement all MC cases with
- put_no_rnd_pixels_l2 which would look more like the
- VP3 source but this would be slower as
- put_no_rnd_pixels_tab is better optimzed */
- if(motion_halfpel_index != 3){
- s->hdsp.put_no_rnd_pixels_tab[1][motion_halfpel_index](
- output_plane + first_pixel,
- motion_source, stride, 8);
- }else{
- int d= (motion_x ^ motion_y)>>31; // d is 0 if motion_x and _y have the same sign, else -1
- s->vp3dsp.put_no_rnd_pixels_l2(
- output_plane + first_pixel,
- motion_source - d,
- motion_source + stride + 1 + d,
- stride, 8);
+ /* first, take care of copying a block from either the
+ * previous or the golden frame */
+ if (s->all_fragments[i].coding_method != MODE_INTRA) {
+ /* Note, it is possible to implement all MC cases
+ * with put_no_rnd_pixels_l2 which would look more
+ * like the VP3 source but this would be slower as
+ * put_no_rnd_pixels_tab is better optimized */
+ if (motion_halfpel_index != 3) {
+ s->hdsp.put_no_rnd_pixels_tab[1][motion_halfpel_index](
+ output_plane + first_pixel,
+ motion_source, stride, 8);
+ } else {
+ /* d is 0 if motion_x and _y have the same sign,
+ * else -1 */
+ int d = (motion_x ^ motion_y) >> 31;
+ s->vp3dsp.put_no_rnd_pixels_l2(output_plane + first_pixel,
+ motion_source - d,
+ motion_source + stride + 1 + d,
+ stride, 8);
+ }
}
- }
-
- /* invert DCT and place (or add) in final output */
- if (s->all_fragments[i].coding_method == MODE_INTRA) {
- int index;
- index = vp3_dequant(s, s->all_fragments + i, plane, 0, block);
- if (index > 63)
- continue;
- s->vp3dsp.idct_put(
- output_plane + first_pixel,
- stride,
- block);
- } else {
- int index = vp3_dequant(s, s->all_fragments + i, plane, 1, block);
- if (index > 63)
- continue;
- if (index > 0) {
- s->vp3dsp.idct_add(
- output_plane + first_pixel,
- stride,
- block);
+ /* invert DCT and place (or add) in final output */
+
+ if (s->all_fragments[i].coding_method == MODE_INTRA) {
+ int index;
+ index = vp3_dequant(s, s->all_fragments + i,
+ plane, 0, block);
+ if (index > 63)
+ continue;
+ s->vp3dsp.idct_put(output_plane + first_pixel,
+ stride,
+ block);
} else {
- s->vp3dsp.idct_dc_add(output_plane + first_pixel, stride, block);
+ int index = vp3_dequant(s, s->all_fragments + i,
+ plane, 1, block);
+ if (index > 63)
+ continue;
+ if (index > 0) {
+ s->vp3dsp.idct_add(output_plane + first_pixel,
+ stride,
+ block);
+ } else {
+ s->vp3dsp.idct_dc_add(output_plane + first_pixel,
+ stride, block);
+ }
}
+ } else {
+ /* copy directly from the previous frame */
+ s->hdsp.put_pixels_tab[1][0](
+ output_plane + first_pixel,
+ last_plane + first_pixel,
+ stride, 8);
}
- } else {
-
- /* copy directly from the previous frame */
- s->hdsp.put_pixels_tab[1][0](
- output_plane + first_pixel,
- last_plane + first_pixel,
- stride, 8);
-
- }
}
}
// Filter up to the last row in the superblock row
if (!s->skip_loop_filter)
- apply_loop_filter(s, plane, 4*sb_y - !!sb_y, FFMIN(4*sb_y+3, fragment_height-1));
+ apply_loop_filter(s, plane, 4 * sb_y - !!sb_y,
+ FFMIN(4 * sb_y + 3, fragment_height - 1));
}
}
- /* this looks like a good place for slice dispatch... */
- /* algorithm:
- * if (slice == s->macroblock_height - 1)
- * dispatch (both last slice & 2nd-to-last slice);
- * else if (slice > 0)
- * dispatch (slice - 1);
- */
+ /* this looks like a good place for slice dispatch... */
+ /* algorithm:
+ * if (slice == s->macroblock_height - 1)
+ * dispatch (both last slice & 2nd-to-last slice);
+ * else if (slice > 0)
+ * dispatch (slice - 1);
+ */
- vp3_draw_horiz_band(s, FFMIN((32 << s->chroma_y_shift) * (slice + 1) -16, s->height-16));
+ vp3_draw_horiz_band(s, FFMIN((32 << s->chroma_y_shift) * (slice + 1) - 16,
+ s->height - 16));
}
/// Allocate tables for per-frame data in Vp3DecodeContext
c_fragment_count = s->fragment_width[1] * s->fragment_height[1];
s->superblock_coding = av_malloc(s->superblock_count);
- s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
+ s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
+
s->coded_fragment_list[0] = av_malloc(s->fragment_count * sizeof(int));
- s->dct_tokens_base = av_malloc(64*s->fragment_count * sizeof(*s->dct_tokens_base));
+
+ s->dct_tokens_base = av_malloc(64 * s->fragment_count *
+ sizeof(*s->dct_tokens_base));
s->motion_val[0] = av_malloc(y_fragment_count * sizeof(*s->motion_val[0]));
s->motion_val[1] = av_malloc(c_fragment_count * sizeof(*s->motion_val[1]));
/* work out the block mapping tables */
s->superblock_fragments = av_malloc(s->superblock_count * 16 * sizeof(int));
- s->macroblock_coding = av_malloc(s->macroblock_count + 1);
+ s->macroblock_coding = av_malloc(s->macroblock_count + 1);
- if (!s->superblock_coding || !s->all_fragments || !s->dct_tokens_base ||
- !s->coded_fragment_list[0] || !s->superblock_fragments || !s->macroblock_coding ||
- !s->motion_val[0] || !s->motion_val[1]) {
+ if (!s->superblock_coding || !s->all_fragments ||
+ !s->dct_tokens_base || !s->coded_fragment_list[0] ||
+ !s->superblock_fragments || !s->macroblock_coding ||
+ !s->motion_val[0] || !s->motion_val[1]) {
vp3_decode_end(avctx);
return -1;
}
avctx->internal->allocate_progress = 1;
- if (avctx->codec_tag == MKTAG('V','P','3','0'))
+ if (avctx->codec_tag == MKTAG('V', 'P', '3', '0'))
s->version = 0;
else
s->version = 1;
- s->avctx = avctx;
- s->width = FFALIGN(avctx->width, 16);
- s->height = FFALIGN(avctx->height, 16);
+ s->avctx = avctx;
+ s->width = FFALIGN(avctx->coded_width, 16);
+ s->height = FFALIGN(avctx->coded_height, 16);
if (avctx->pix_fmt == AV_PIX_FMT_NONE)
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
- ff_hpeldsp_init(&s->hdsp, avctx->flags | CODEC_FLAG_BITEXACT);
+ ff_hpeldsp_init(&s->hdsp, avctx->flags | AV_CODEC_FLAG_BITEXACT);
ff_videodsp_init(&s->vdsp, 8);
ff_vp3dsp_init(&s->vp3dsp, avctx->flags);
for (i = 0; i < 64; i++) {
-#define T(x) (x >> 3) | ((x & 7) << 3)
- s->idct_permutation[i] = T(i);
- s->idct_scantable[i] = T(ff_zigzag_direct[i]);
-#undef T
+#define TRANSPOSE(x) (x >> 3) | ((x & 7) << 3)
+ s->idct_permutation[i] = TRANSPOSE(i);
+ s->idct_scantable[i] = TRANSPOSE(ff_zigzag_direct[i]);
+#undef TRANSPOSE
}
/* initialize to an impossible value which will force a recalculation
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift,
&s->chroma_y_shift);
- s->y_superblock_width = (s->width + 31) / 32;
+ s->y_superblock_width = (s->width + 31) / 32;
s->y_superblock_height = (s->height + 31) / 32;
- s->y_superblock_count = s->y_superblock_width * s->y_superblock_height;
+ s->y_superblock_count = s->y_superblock_width * s->y_superblock_height;
/* work out the dimensions for the C planes */
- c_width = s->width >> s->chroma_x_shift;
- c_height = s->height >> s->chroma_y_shift;
- s->c_superblock_width = (c_width + 31) / 32;
+ c_width = s->width >> s->chroma_x_shift;
+ c_height = s->height >> s->chroma_y_shift;
+ s->c_superblock_width = (c_width + 31) / 32;
s->c_superblock_height = (c_height + 31) / 32;
- s->c_superblock_count = s->c_superblock_width * s->c_superblock_height;
+ s->c_superblock_count = s->c_superblock_width * s->c_superblock_height;
- s->superblock_count = s->y_superblock_count + (s->c_superblock_count * 2);
+ s->superblock_count = s->y_superblock_count + (s->c_superblock_count * 2);
s->u_superblock_start = s->y_superblock_count;
s->v_superblock_start = s->u_superblock_start + s->c_superblock_count;
- s->macroblock_width = (s->width + 15) / 16;
+ s->macroblock_width = (s->width + 15) / 16;
s->macroblock_height = (s->height + 15) / 16;
- s->macroblock_count = s->macroblock_width * s->macroblock_height;
+ s->macroblock_count = s->macroblock_width * s->macroblock_height;
- s->fragment_width[0] = s->width / FRAGMENT_PIXELS;
+ s->fragment_width[0] = s->width / FRAGMENT_PIXELS;
s->fragment_height[0] = s->height / FRAGMENT_PIXELS;
- s->fragment_width[1] = s->fragment_width[0] >> s->chroma_x_shift;
+ s->fragment_width[1] = s->fragment_width[0] >> s->chroma_x_shift;
s->fragment_height[1] = s->fragment_height[0] >> s->chroma_y_shift;
/* fragment count covers all 8x8 blocks for all 3 planes */
y_fragment_count = s->fragment_width[0] * s->fragment_height[0];
c_fragment_count = s->fragment_width[1] * s->fragment_height[1];
- s->fragment_count = y_fragment_count + 2*c_fragment_count;
+ s->fragment_count = y_fragment_count + 2 * c_fragment_count;
s->fragment_start[1] = y_fragment_count;
s->fragment_start[2] = y_fragment_count + c_fragment_count;
- if (!s->theora_tables)
- {
+ if (!s->theora_tables) {
for (i = 0; i < 64; i++) {
s->coded_dc_scale_factor[i] = vp31_dc_scale_factor[i];
s->coded_ac_scale_factor[i] = vp31_ac_scale_factor[i];
- s->base_matrix[0][i] = vp31_intra_y_dequant[i];
- s->base_matrix[1][i] = vp31_intra_c_dequant[i];
- s->base_matrix[2][i] = vp31_inter_dequant[i];
- s->filter_limit_values[i] = vp31_filter_limit_values[i];
+ s->base_matrix[0][i] = vp31_intra_y_dequant[i];
+ s->base_matrix[1][i] = vp31_intra_c_dequant[i];
+ s->base_matrix[2][i] = vp31_inter_dequant[i];
+ s->filter_limit_values[i] = vp31_filter_limit_values[i];
}
- for(inter=0; inter<2; inter++){
- for(plane=0; plane<3; plane++){
- s->qr_count[inter][plane]= 1;
- s->qr_size [inter][plane][0]= 63;
- s->qr_base [inter][plane][0]=
- s->qr_base [inter][plane][1]= 2*inter + (!!plane)*!inter;
+ for (inter = 0; inter < 2; inter++) {
+ for (plane = 0; plane < 3; plane++) {
+ s->qr_count[inter][plane] = 1;
+ s->qr_size[inter][plane][0] = 63;
+ s->qr_base[inter][plane][0] =
+ s->qr_base[inter][plane][1] = 2 * inter + (!!plane) * !inter;
}
}
/* init VLC tables */
for (i = 0; i < 16; i++) {
-
/* DC histograms */
init_vlc(&s->dc_vlc[i], 11, 32,
- &dc_bias[i][0][1], 4, 2,
- &dc_bias[i][0][0], 4, 2, 0);
+ &dc_bias[i][0][1], 4, 2,
+ &dc_bias[i][0][0], 4, 2, 0);
/* group 1 AC histograms */
init_vlc(&s->ac_vlc_1[i], 11, 32,
- &ac_bias_0[i][0][1], 4, 2,
- &ac_bias_0[i][0][0], 4, 2, 0);
+ &ac_bias_0[i][0][1], 4, 2,
+ &ac_bias_0[i][0][0], 4, 2, 0);
/* group 2 AC histograms */
init_vlc(&s->ac_vlc_2[i], 11, 32,
- &ac_bias_1[i][0][1], 4, 2,
- &ac_bias_1[i][0][0], 4, 2, 0);
+ &ac_bias_1[i][0][1], 4, 2,
+ &ac_bias_1[i][0][0], 4, 2, 0);
/* group 3 AC histograms */
init_vlc(&s->ac_vlc_3[i], 11, 32,
- &ac_bias_2[i][0][1], 4, 2,
- &ac_bias_2[i][0][0], 4, 2, 0);
+ &ac_bias_2[i][0][1], 4, 2,
+ &ac_bias_2[i][0][0], 4, 2, 0);
/* group 4 AC histograms */
init_vlc(&s->ac_vlc_4[i], 11, 32,
- &ac_bias_3[i][0][1], 4, 2,
- &ac_bias_3[i][0][0], 4, 2, 0);
+ &ac_bias_3[i][0][1], 4, 2,
+ &ac_bias_3[i][0][0], 4, 2, 0);
}
} else {
-
for (i = 0; i < 16; i++) {
/* DC histograms */
if (init_vlc(&s->dc_vlc[i], 11, 32,
- &s->huffman_table[i][0][1], 8, 4,
- &s->huffman_table[i][0][0], 8, 4, 0) < 0)
+ &s->huffman_table[i][0][1], 8, 4,
+ &s->huffman_table[i][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 1 AC histograms */
if (init_vlc(&s->ac_vlc_1[i], 11, 32,
- &s->huffman_table[i+16][0][1], 8, 4,
- &s->huffman_table[i+16][0][0], 8, 4, 0) < 0)
+ &s->huffman_table[i + 16][0][1], 8, 4,
+ &s->huffman_table[i + 16][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 2 AC histograms */
if (init_vlc(&s->ac_vlc_2[i], 11, 32,
- &s->huffman_table[i+16*2][0][1], 8, 4,
- &s->huffman_table[i+16*2][0][0], 8, 4, 0) < 0)
+ &s->huffman_table[i + 16 * 2][0][1], 8, 4,
+ &s->huffman_table[i + 16 * 2][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 3 AC histograms */
if (init_vlc(&s->ac_vlc_3[i], 11, 32,
- &s->huffman_table[i+16*3][0][1], 8, 4,
- &s->huffman_table[i+16*3][0][0], 8, 4, 0) < 0)
+ &s->huffman_table[i + 16 * 3][0][1], 8, 4,
+ &s->huffman_table[i + 16 * 3][0][0], 8, 4, 0) < 0)
goto vlc_fail;
/* group 4 AC histograms */
if (init_vlc(&s->ac_vlc_4[i], 11, 32,
- &s->huffman_table[i+16*4][0][1], 8, 4,
- &s->huffman_table[i+16*4][0][0], 8, 4, 0) < 0)
+ &s->huffman_table[i + 16 * 4][0][1], 8, 4,
+ &s->huffman_table[i + 16 * 4][0][0], 8, 4, 0) < 0)
goto vlc_fail;
}
}
init_vlc(&s->superblock_run_length_vlc, 6, 34,
- &superblock_run_length_vlc_table[0][1], 4, 2,
- &superblock_run_length_vlc_table[0][0], 4, 2, 0);
+ &superblock_run_length_vlc_table[0][1], 4, 2,
+ &superblock_run_length_vlc_table[0][0], 4, 2, 0);
init_vlc(&s->fragment_run_length_vlc, 5, 30,
- &fragment_run_length_vlc_table[0][1], 4, 2,
- &fragment_run_length_vlc_table[0][0], 4, 2, 0);
+ &fragment_run_length_vlc_table[0][1], 4, 2,
+ &fragment_run_length_vlc_table[0][0], 4, 2, 0);
init_vlc(&s->mode_code_vlc, 3, 8,
- &mode_code_vlc_table[0][1], 2, 1,
- &mode_code_vlc_table[0][0], 2, 1, 0);
+ &mode_code_vlc_table[0][1], 2, 1,
+ &mode_code_vlc_table[0][0], 2, 1, 0);
init_vlc(&s->motion_vector_vlc, 6, 63,
- &motion_vector_vlc_table[0][1], 2, 1,
- &motion_vector_vlc_table[0][0], 2, 1, 0);
+ &motion_vector_vlc_table[0][1], 2, 1,
+ &motion_vector_vlc_table[0][0], 2, 1, 0);
return allocate_tables(avctx);
Vp3DecodeContext *s = avctx->priv_data;
int ret = 0;
-
/* shuffle frames (last = current) */
ff_thread_release_buffer(avctx, &s->last_frame);
ret = ff_thread_ref_frame(&s->last_frame, &s->current_frame);
Vp3DecodeContext *s = dst->priv_data, *s1 = src->priv_data;
int qps_changed = 0, i, err;
-#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
+#define copy_fields(to, from, start_field, end_field) \
+ memcpy(&to->start_field, &from->start_field, \
+ (char *) &to->end_field - (char *) &to->start_field)
- if (!s1->current_frame.f->data[0]
- ||s->width != s1->width
- ||s->height!= s1->height) {
+ if (!s1->current_frame.f->data[0] ||
+ s->width != s1->width || s->height != s1->height) {
if (s != s1)
ref_frames(s, s1);
return -1;
return err;
y_fragment_count = s->fragment_width[0] * s->fragment_height[0];
c_fragment_count = s->fragment_width[1] * s->fragment_height[1];
- memcpy(s->motion_val[0], s1->motion_val[0], y_fragment_count * sizeof(*s->motion_val[0]));
- memcpy(s->motion_val[1], s1->motion_val[1], c_fragment_count * sizeof(*s->motion_val[1]));
+ memcpy(s->motion_val[0], s1->motion_val[0],
+ y_fragment_count * sizeof(*s->motion_val[0]));
+ memcpy(s->motion_val[1], s1->motion_val[1],
+ c_fragment_count * sizeof(*s->motion_val[1]));
}
// copy previous frame data
}
if (s->qps[0] != s1->qps[0])
- memcpy(&s->bounding_values_array, &s1->bounding_values_array, sizeof(s->bounding_values_array));
+ memcpy(&s->bounding_values_array, &s1->bounding_values_array,
+ sizeof(s->bounding_values_array));
if (qps_changed)
copy_fields(s, s1, qps, superblock_count);
void *data, int *got_frame,
AVPacket *avpkt)
{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
Vp3DecodeContext *s = avctx->priv_data;
GetBitContext gb;
int i, ret;
init_get_bits(&gb, buf, buf_size * 8);
- if (s->theora && get_bits1(&gb))
- {
- av_log(avctx, AV_LOG_ERROR, "Header packet passed to frame decoder, skipping\n");
+ if (s->theora && get_bits1(&gb)) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Header packet passed to frame decoder, skipping\n");
return -1;
}
for (i = 0; i < 3; i++)
s->last_qps[i] = s->qps[i];
- s->nqps=0;
- do{
- s->qps[s->nqps++]= get_bits(&gb, 6);
- } while(s->theora >= 0x030200 && s->nqps<3 && get_bits1(&gb));
+ s->nqps = 0;
+ do {
+ s->qps[s->nqps++] = get_bits(&gb, 6);
+ } while (s->theora >= 0x030200 && s->nqps < 3 && get_bits1(&gb));
for (i = s->nqps; i < 3; i++)
s->qps[i] = -1;
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
av_log(s->avctx, AV_LOG_INFO, " VP3 %sframe #%d: Q index = %d\n",
- s->keyframe?"key":"", avctx->frame_number+1, s->qps[0]);
+ s->keyframe ? "key" : "", avctx->frame_number + 1, s->qps[0]);
s->skip_loop_filter = !s->filter_limit_values[s->qps[0]] ||
- avctx->skip_loop_filter >= (s->keyframe ? AVDISCARD_ALL : AVDISCARD_NONKEY);
+ avctx->skip_loop_filter >= (s->keyframe ? AVDISCARD_ALL
+ : AVDISCARD_NONKEY);
if (s->qps[0] != s->last_qps[0])
init_loop_filter(s);
if (avctx->skip_frame >= AVDISCARD_NONKEY && !s->keyframe)
return buf_size;
- s->current_frame.f->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
+ s->current_frame.f->pict_type = s->keyframe ? AV_PICTURE_TYPE_I
+ : AV_PICTURE_TYPE_P;
if (ff_thread_get_buffer(avctx, &s->current_frame, AV_GET_BUFFER_FLAG_REF) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto error;
}
if (!s->edge_emu_buffer)
- s->edge_emu_buffer = av_malloc(9*FFABS(s->current_frame.f->linesize[0]));
+ s->edge_emu_buffer = av_malloc(9 * FFABS(s->current_frame.f->linesize[0]));
if (s->keyframe) {
- if (!s->theora)
- {
+ if (!s->theora) {
skip_bits(&gb, 4); /* width code */
skip_bits(&gb, 4); /* height code */
- if (s->version)
- {
+ if (s->version) {
s->version = get_bits(&gb, 5);
if (avctx->frame_number == 0)
- av_log(s->avctx, AV_LOG_DEBUG, "VP version: %d\n", s->version);
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "VP version: %d\n", s->version);
}
}
- if (s->version || s->theora)
- {
- if (get_bits1(&gb))
- av_log(s->avctx, AV_LOG_ERROR, "Warning, unsupported keyframe coding type?!\n");
+ if (s->version || s->theora) {
+ if (get_bits1(&gb))
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Warning, unsupported keyframe coding type?!\n");
skip_bits(&gb, 2); /* reserved? */
}
} else {
if (!s->golden_frame.f->data[0]) {
- av_log(s->avctx, AV_LOG_WARNING, "vp3: first frame not a keyframe\n");
+ av_log(s->avctx, AV_LOG_WARNING,
+ "vp3: first frame not a keyframe\n");
s->golden_frame.f->pict_type = AV_PICTURE_TYPE_I;
- if (ff_thread_get_buffer(avctx, &s->golden_frame, AV_GET_BUFFER_FLAG_REF) < 0) {
+ if (ff_thread_get_buffer(avctx, &s->golden_frame,
+ AV_GET_BUFFER_FLAG_REF) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto error;
}
ff_thread_release_buffer(avctx, &s->last_frame);
- if ((ret = ff_thread_ref_frame(&s->last_frame, &s->golden_frame)) < 0)
+ if ((ret = ff_thread_ref_frame(&s->last_frame,
+ &s->golden_frame)) < 0)
goto error;
ff_thread_report_progress(&s->last_frame, INT_MAX, 0);
}
memset(s->all_fragments, 0, s->fragment_count * sizeof(Vp3Fragment));
ff_thread_finish_setup(avctx);
- if (unpack_superblocks(s, &gb)){
+ if (unpack_superblocks(s, &gb)) {
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_superblocks\n");
goto error;
}
- if (unpack_modes(s, &gb)){
+ if (unpack_modes(s, &gb)) {
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_modes\n");
goto error;
}
- if (unpack_vectors(s, &gb)){
+ if (unpack_vectors(s, &gb)) {
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_vectors\n");
goto error;
}
- if (unpack_block_qpis(s, &gb)){
+ if (unpack_block_qpis(s, &gb)) {
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_block_qpis\n");
goto error;
}
- if (unpack_dct_coeffs(s, &gb)){
+ if (unpack_dct_coeffs(s, &gb)) {
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_dct_coeffs\n");
goto error;
}
if (s->flipped_image)
s->data_offset[i] = 0;
else
- s->data_offset[i] = (height-1) * s->current_frame.f->linesize[i];
+ s->data_offset[i] = (height - 1) * s->current_frame.f->linesize[i];
}
s->last_slice_end = 0;
// filter the last row
for (i = 0; i < 3; i++) {
- int row = (s->height >> (3+(i && s->chroma_y_shift))) - 1;
- apply_loop_filter(s, i, row, row+1);
+ int row = (s->height >> (3 + (i && s->chroma_y_shift))) - 1;
+ apply_loop_filter(s, i, row, row + 1);
}
- vp3_draw_horiz_band(s, s->avctx->height);
+ vp3_draw_horiz_band(s, s->height);
+ /* output frame, offset as needed */
if ((ret = av_frame_ref(data, s->current_frame.f)) < 0)
return ret;
+ for (i = 0; i < 3; i++) {
+ AVFrame *dst = data;
+ int off = (s->offset_x >> (i && s->chroma_y_shift)) +
+ (s->offset_y >> (i && s->chroma_y_shift)) * dst->linesize[i];
+ dst->data[i] += off;
+ }
*got_frame = 1;
- if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME)) {
+ if (!HAVE_THREADS || !(s->avctx->active_thread_type & FF_THREAD_FRAME)) {
ret = update_frames(avctx);
if (ret < 0)
return ret;
error:
ff_thread_report_progress(&s->current_frame, INT_MAX, 0);
- if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
+ if (!HAVE_THREADS || !(s->avctx->active_thread_type & FF_THREAD_FRAME))
av_frame_unref(s->current_frame.f);
return -1;
return -1;
}
token = get_bits(gb, 5);
- av_dlog(avctx, "hti %d hbits %x token %d entry : %d size %d\n",
+ ff_dlog(avctx, "hti %d hbits %x token %d entry : %d size %d\n",
s->hti, s->hbits, token, s->entries, s->huff_code_size);
s->huffman_table[s->hti][token][0] = s->hbits;
s->huffman_table[s->hti][token][1] = s->huff_code_size;
s->entries++;
- }
- else {
- if (s->huff_code_size >= 32) {/* overflow */
+ } else {
+ if (s->huff_code_size >= 32) { /* overflow */
av_log(avctx, AV_LOG_ERROR, "huffman tree overflow\n");
return -1;
}
{
Vp3DecodeContext *s = avctx->priv_data;
int visible_width, visible_height, colorspace;
- int offset_x = 0, offset_y = 0;
+ uint8_t offset_x = 0, offset_y = 0;
+ int ret;
AVRational fps, aspect;
s->theora = get_bits_long(gb, 24);
av_log(avctx, AV_LOG_DEBUG, "Theora bitstream version %X\n", s->theora);
- /* 3.2.0 aka alpha3 has the same frame orientation as original vp3 */
- /* but previous versions have the image flipped relative to vp3 */
- if (s->theora < 0x030200)
- {
+ /* 3.2.0 aka alpha3 has the same frame orientation as original vp3
+ * but previous versions have the image flipped relative to vp3 */
+ if (s->theora < 0x030200) {
s->flipped_image = 1;
- av_log(avctx, AV_LOG_DEBUG, "Old (<alpha3) Theora bitstream, flipped image\n");
+ av_log(avctx, AV_LOG_DEBUG,
+ "Old (<alpha3) Theora bitstream, flipped image\n");
}
- visible_width = s->width = get_bits(gb, 16) << 4;
- visible_height = s->height = get_bits(gb, 16) << 4;
-
- if(av_image_check_size(s->width, s->height, 0, avctx)){
- av_log(avctx, AV_LOG_ERROR, "Invalid dimensions (%dx%d)\n", s->width, s->height);
- s->width= s->height= 0;
- return -1;
- }
+ visible_width =
+ s->width = get_bits(gb, 16) << 4;
+ visible_height =
+ s->height = get_bits(gb, 16) << 4;
if (s->theora >= 0x030200) {
visible_width = get_bits_long(gb, 24);
offset_y = get_bits(gb, 8); /* offset y, from bottom */
}
+ /* sanity check */
+ if (av_image_check_size(visible_width, visible_height, 0, avctx) < 0 ||
+ visible_width + offset_x > s->width ||
+ visible_height + offset_y > s->height) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid frame dimensions - w:%d h:%d x:%d y:%d (%dx%d).\n",
+ visible_width, visible_height, offset_x, offset_y,
+ s->width, s->height);
+ return AVERROR_INVALIDDATA;
+ }
+
fps.num = get_bits_long(gb, 32);
fps.den = get_bits_long(gb, 32);
if (fps.num && fps.den) {
- av_reduce(&avctx->time_base.num, &avctx->time_base.den,
- fps.den, fps.num, 1<<30);
+ if (fps.num < 0 || fps.den < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid framerate\n");
+ return AVERROR_INVALIDDATA;
+ }
+ av_reduce(&avctx->framerate.den, &avctx->framerate.num,
+ fps.den, fps.num, 1 << 30);
}
aspect.num = get_bits_long(gb, 24);
if (aspect.num && aspect.den) {
av_reduce(&avctx->sample_aspect_ratio.num,
&avctx->sample_aspect_ratio.den,
- aspect.num, aspect.den, 1<<30);
+ aspect.num, aspect.den, 1 << 30);
+ ff_set_sar(avctx, avctx->sample_aspect_ratio);
}
if (s->theora < 0x030200)
skip_bits(gb, 6); /* quality hint */
- if (s->theora >= 0x030200)
- {
+ if (s->theora >= 0x030200) {
skip_bits(gb, 5); /* keyframe frequency force */
avctx->pix_fmt = theora_pix_fmts[get_bits(gb, 2)];
skip_bits(gb, 3); /* reserved */
}
-// align_get_bits(gb);
-
- if ( visible_width <= s->width && visible_width > s->width-16
- && visible_height <= s->height && visible_height > s->height-16
- && !offset_x && (offset_y == s->height - visible_height))
- avcodec_set_dimensions(avctx, visible_width, visible_height);
- else
- avcodec_set_dimensions(avctx, s->width, s->height);
+ ret = ff_set_dimensions(avctx, s->width, s->height);
+ if (ret < 0)
+ return ret;
+ if (!(avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) &&
+ (visible_width != s->width || visible_height != s->height)) {
+ avctx->width = visible_width;
+ avctx->height = visible_height;
+ // translate offsets from theora axis ([0,0] lower left)
+ // to normal axis ([0,0] upper left)
+ s->offset_x = offset_x;
+ s->offset_y = s->height - visible_height - offset_y;
+
+ if ((s->offset_x & 0x1F) && !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
+ s->offset_x &= ~0x1F;
+ av_log(avctx, AV_LOG_WARNING, "Reducing offset_x from %d to %d"
+ "chroma samples to preserve alignment.\n",
+ offset_x, s->offset_x);
+ }
+ }
- if (colorspace == 1) {
+ if (colorspace == 1)
avctx->color_primaries = AVCOL_PRI_BT470M;
- } else if (colorspace == 2) {
+ else if (colorspace == 2)
avctx->color_primaries = AVCOL_PRI_BT470BG;
- }
+
if (colorspace == 1 || colorspace == 2) {
avctx->colorspace = AVCOL_SPC_BT470BG;
avctx->color_trc = AVCOL_TRC_BT709;
else
matrices = 3;
- if(matrices > 384){
+ if (matrices > 384) {
av_log(avctx, AV_LOG_ERROR, "invalid number of base matrixes\n");
return -1;
}
- for(n=0; n<matrices; n++){
+ for (n = 0; n < matrices; n++)
for (i = 0; i < 64; i++)
- s->base_matrix[n][i]= get_bits(gb, 8);
- }
+ s->base_matrix[n][i] = get_bits(gb, 8);
for (inter = 0; inter <= 1; inter++) {
for (plane = 0; plane <= 2; plane++) {
- int newqr= 1;
+ int newqr = 1;
if (inter || plane > 0)
newqr = get_bits1(gb);
if (!newqr) {
int qtj, plj;
- if(inter && get_bits1(gb)){
+ if (inter && get_bits1(gb)) {
qtj = 0;
plj = plane;
- }else{
- qtj= (3*inter + plane - 1) / 3;
- plj= (plane + 2) % 3;
+ } else {
+ qtj = (3 * inter + plane - 1) / 3;
+ plj = (plane + 2) % 3;
}
- s->qr_count[inter][plane]= s->qr_count[qtj][plj];
- memcpy(s->qr_size[inter][plane], s->qr_size[qtj][plj], sizeof(s->qr_size[0][0]));
- memcpy(s->qr_base[inter][plane], s->qr_base[qtj][plj], sizeof(s->qr_base[0][0]));
+ s->qr_count[inter][plane] = s->qr_count[qtj][plj];
+ memcpy(s->qr_size[inter][plane], s->qr_size[qtj][plj],
+ sizeof(s->qr_size[0][0]));
+ memcpy(s->qr_base[inter][plane], s->qr_base[qtj][plj],
+ sizeof(s->qr_base[0][0]));
} else {
- int qri= 0;
- int qi = 0;
-
- for(;;){
- i= get_bits(gb, av_log2(matrices-1)+1);
- if(i>= matrices){
- av_log(avctx, AV_LOG_ERROR, "invalid base matrix index\n");
+ int qri = 0;
+ int qi = 0;
+
+ for (;;) {
+ i = get_bits(gb, av_log2(matrices - 1) + 1);
+ if (i >= matrices) {
+ av_log(avctx, AV_LOG_ERROR,
+ "invalid base matrix index\n");
return -1;
}
- s->qr_base[inter][plane][qri]= i;
- if(qi >= 63)
+ s->qr_base[inter][plane][qri] = i;
+ if (qi >= 63)
break;
- i = get_bits(gb, av_log2(63-qi)+1) + 1;
- s->qr_size[inter][plane][qri++]= i;
+ i = get_bits(gb, av_log2(63 - qi) + 1) + 1;
+ s->qr_size[inter][plane][qri++] = i;
qi += i;
}
av_log(avctx, AV_LOG_ERROR, "invalid qi %d > 63\n", qi);
return -1;
}
- s->qr_count[inter][plane]= qri;
+ s->qr_count[inter][plane] = qri;
}
}
}
/* Huffman tables */
for (s->hti = 0; s->hti < 80; s->hti++) {
- s->entries = 0;
+ s->entries = 0;
s->huff_code_size = 1;
if (!get_bits1(gb)) {
s->hbits = 0;
- if(read_huffman_tree(avctx, gb))
+ if (read_huffman_tree(avctx, gb))
return -1;
s->hbits = 1;
- if(read_huffman_tree(avctx, gb))
+ if (read_huffman_tree(avctx, gb))
return -1;
}
}
s->theora = 1;
- if (!avctx->extradata_size)
- {
+ if (!avctx->extradata_size) {
av_log(avctx, AV_LOG_ERROR, "Missing extradata!\n");
return -1;
}
if (avpriv_split_xiph_headers(avctx->extradata, avctx->extradata_size,
- 42, header_start, header_len) < 0) {
+ 42, header_start, header_len) < 0) {
av_log(avctx, AV_LOG_ERROR, "Corrupt extradata\n");
return -1;
}
- for(i=0;i<3;i++) {
- if (header_len[i] <= 0)
- continue;
- init_get_bits(&gb, header_start[i], header_len[i] * 8);
+ for (i = 0; i < 3; i++) {
+ if (header_len[i] <= 0)
+ continue;
+ init_get_bits(&gb, header_start[i], header_len[i] * 8);
- ptype = get_bits(&gb, 8);
+ ptype = get_bits(&gb, 8);
- if (!(ptype & 0x80))
- {
- av_log(avctx, AV_LOG_ERROR, "Invalid extradata!\n");
-// return -1;
- }
+ if (!(ptype & 0x80)) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid extradata!\n");
+// return -1;
+ }
- // FIXME: Check for this as well.
- skip_bits_long(&gb, 6*8); /* "theora" */
+ // FIXME: Check for this as well.
+ skip_bits_long(&gb, 6 * 8); /* "theora" */
- switch(ptype)
- {
+ switch (ptype) {
case 0x80:
theora_decode_header(avctx, &gb);
- break;
+ break;
case 0x81:
// FIXME: is this needed? it breaks sometimes
// theora_decode_comments(avctx, gb);
return -1;
break;
default:
- av_log(avctx, AV_LOG_ERROR, "Unknown Theora config packet: %d\n", ptype&~0x80);
+ av_log(avctx, AV_LOG_ERROR,
+ "Unknown Theora config packet: %d\n", ptype & ~0x80);
+ break;
+ }
+ if (ptype != 0x81 && 8 * header_len[i] != get_bits_count(&gb))
+ av_log(avctx, AV_LOG_WARNING,
+ "%d bits left in packet %X\n",
+ 8 * header_len[i] - get_bits_count(&gb), ptype);
+ if (s->theora < 0x030200)
break;
}
- if(ptype != 0x81 && 8*header_len[i] != get_bits_count(&gb))
- av_log(avctx, AV_LOG_WARNING, "%d bits left in packet %X\n", 8*header_len[i] - get_bits_count(&gb), ptype);
- if (s->theora < 0x030200)
- break;
- }
return vp3_decode_init(avctx);
}
AVCodec ff_theora_decoder = {
.name = "theora",
+ .long_name = NULL_IF_CONFIG_SMALL("Theora"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_THEORA,
.priv_data_size = sizeof(Vp3DecodeContext),
.init = theora_decode_init,
.close = vp3_decode_end,
.decode = vp3_decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND |
- CODEC_CAP_FRAME_THREADS,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND |
+ AV_CODEC_CAP_FRAME_THREADS,
.flush = vp3_decode_flush,
- .long_name = NULL_IF_CONFIG_SMALL("Theora"),
.init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
AVCodec ff_vp3_decoder = {
.name = "vp3",
+ .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP3,
.priv_data_size = sizeof(Vp3DecodeContext),
.init = vp3_decode_init,
.close = vp3_decode_end,
.decode = vp3_decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND |
- CODEC_CAP_FRAME_THREADS,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND |
+ AV_CODEC_CAP_FRAME_THREADS,
.flush = vp3_decode_flush,
- .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
.init_thread_copy = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context),
};
projects / ffmpeg / blobdiff